89788660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{1753}}^1$

素因数の和:1972

約数の個数: 48

約数和(自身を含む): 204207696

約数和(自身を除く): 114419036

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 197, 260, 394, 788, 985, 1753, 1970, 2561, 3506, 3940, 5122, 7012, 8765, 10244, 12805, 17530, 22789, 25610, 35060, 45578, 51220, 91156, 113945, 227890, 345341, 455780, 690682, 1381364, 1726705, 3453410, 4489433, 6906820, 8978866, 17957732, 22447165, 44894330, 89788660]

約数ペア:

[(1, 89788660), (2, 44894330), (4, 22447165), (5, 17957732), (10, 8978866), (13, 6906820), (20, 4489433), (26, 3453410), (52, 1726705), (65, 1381364), (130, 690682), (197, 455780), (260, 345341), (394, 227890), (788, 113945), (985, 91156), (1753, 51220), (1970, 45578), (2561, 35060), (3506, 25610), (3940, 22789), (5122, 17530), (7012, 12805), (8765, 10244)]